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Mirrors > Home > ILE Home > Th. List > elfz2 | Unicode version |
Description: Membership in a finite
set of sequential integers. We use the fact that
an operation's value is empty outside of its domain to show ![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
elfz2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anass 399 |
. 2
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2 | df-3an 965 |
. . 3
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3 | 2 | anbi1i 454 |
. 2
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4 | df-fz 9822 |
. . . 4
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5 | 4 | elmpocl 5976 |
. . 3
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6 | simpl 108 |
. . 3
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7 | elfz1 9826 |
. . . 4
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8 | 3anass 967 |
. . . . 5
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9 | ibar 299 |
. . . . 5
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10 | 8, 9 | syl5bb 191 |
. . . 4
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11 | 7, 10 | bitrd 187 |
. . 3
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12 | 5, 6, 11 | pm5.21nii 694 |
. 2
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13 | 1, 3, 12 | 3bitr4ri 212 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-14 1493 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-pow 4106 ax-pr 4139 ax-setind 4460 ax-cnex 7735 ax-resscn 7736 |
This theorem depends on definitions: df-bi 116 df-3or 964 df-3an 965 df-tru 1335 df-fal 1338 df-nf 1438 df-sb 1737 df-eu 2003 df-mo 2004 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ne 2310 df-ral 2422 df-rex 2423 df-rab 2426 df-v 2691 df-sbc 2914 df-dif 3078 df-un 3080 df-in 3082 df-ss 3089 df-pw 3517 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-br 3938 df-opab 3998 df-id 4223 df-xp 4553 df-rel 4554 df-cnv 4555 df-co 4556 df-dm 4557 df-iota 5096 df-fun 5133 df-fv 5139 df-ov 5785 df-oprab 5786 df-mpo 5787 df-neg 7960 df-z 9079 df-fz 9822 |
This theorem is referenced by: elfz4 9830 elfzuzb 9831 uzsubsubfz 9858 fzmmmeqm 9869 fzpreddisj 9882 elfz1b 9901 fzp1nel 9915 elfz0ubfz0 9933 elfz0fzfz0 9934 fz0fzelfz0 9935 fz0fzdiffz0 9938 elfzmlbp 9940 fzind2 10047 iseqf1olemqcl 10290 iseqf1olemnab 10292 iseqf1olemab 10293 seq3f1olemqsumkj 10302 seq3f1olemqsumk 10303 summodclem2a 11182 fsum3 11188 fsum3cvg3 11197 fsumcl2lem 11199 fsumadd 11207 fsummulc2 11249 prodmodclem3 11376 prodmodclem2a 11377 |
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